Portable-propeller-holding device.



W. G. GILLIAM.

PORTABLE PROPELLER HOLDING DEVICE.

APPLICATION FILED MAY 12, 1915.

Patented Jan. 11, 1916.

warren stares PATENT @FEQE.

WILFRID GOUNOD GILLIAM, OF BOSTON, MASSACHUSETTS.

PORTABLE-PBOPELLER-HOLDING DEVICE.

To all whom it may concern:

Be it known that I, WILFRID G. GILLIAM, a citizen of the UnitedStates, residing at- Boston, in the county of Suflolk and State of Massachusetts, have invented certain new and useful Improvements in Portable-Pro peller-Holding Devices; and I do hereby declare the. following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in portable propellers for row boats, skifi's, etc., and the object in view is to produce a simple and eflicient device of this nature so'arranged that the same may be easily and quickly secured to a boat with out the employment of the usual screwactuated clamping means. a

More specifically, the invention consists in the provision of a clamping means for holding an engine and propeller to the stern of a boat through the medium of a cam lever cooperating with an adjustable clamping jaw.

My invention comprises various details of construction and combinations and arrangements of arts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appened claims.

I illustrate my invention in the accompanying drawings, in Which:

Figure l is a vertical sectional view through the stern of a boat showing in elevation my invention as applied thereto. Fig. 2 is a top plan view showing the device as applied to the boat. Fig-3 is a sectional view on line 33 of Fig. 2, and Fig. 4 is a sectional view on line 44 of Fig. 3.

Reference now being had to the details of the drawings by letter, A designates the clamped. A yoke B is provided with stern of a boat "to which the device is to be two downwardly curved arms C, preferably of a slightly resilient material, and is designed to. fit over the upper end of the stern of a boat in the manner shown in the drawings, the portion of the yoke which extends on the outside of the stern being adapted to frictionally engage the latter and cooperate with a movable clamping member D to hold Specification of Letters Patent.

Patented Jan. 11, 1916.

Application filed May 12, 1915. Serial No. 27,700.

the yoke securely in place. Said clamping member D has series of serrations upon its contact face and has fixed thereto the guide pins E which are headed as at E and which are movable through apertures F formed in the'arms C. Said clamping member D has a chambered portion H, the wall of which is interiorly threaded and is adapted to receive the headed adjusting screw K. Levers, designated by letter L, are pivotally mounted upon the pins N, one mounted in each of the holes 0 formed in said arms. Each lever has a short cam end L which is adapted to contact with thehead of the adjusting screw K, forming means whereby, as thelever is swung upon its pivot, the clamping member D may be moved toward or in contact with the inner face of the stern of the boat and cooperate with the yoke to form a means for securely holding the same in" place against accidental loosening by reason of vibrations or from other causes. Said yoke is adapted to support a motor, a portion of which is outlined in the drawings in dotted lines and designated by letter T and which is adapted to be connected through the medium of a driving shaft T with a propeller, not shown.

By the provision of a device for holding propellers and engines upon boats and made in accordance with the construction shown and described, a simple and efficient mechanism is afforded whereby the yoke carrying the propeller and the power for driving the same may be easily and quickly adjusted to the stems of boats and held rigidly in place by the cam lever cooperating with the adjustable screw carried upon the movable clamping member, said screw designed to be adjusted to adapt the same for different thicknesses of the stems of boats.

What I claim to be new is 1. A device for fastening portable propellers and power I driving apparatus to boats comprising a yoke, a portion of which forms a clamping surface, said yoke having arms, levers pivotally mounted upon said arms, a movable clamping member, and an adjusting screw carriedby said member and against which the end of the lever is adapted to frictionally contact, as set forth.

2. A device for fastening portable proellers and power 7 driving apparatus to oats, comprising a yoke, a portion of which forms a clamping surface, said yoke having arms, levers pivotally mounted upon said arms, clamping members supported by said;

arms, adjusting screws carried by said members and against which the ends of the levers are adapted to contact, and means for guiding the clamping members, as set forth.

3. A device for fastening portable propellers and power driving apparatus to boats, comprising a yoke, a portion of which forms a clamping surface, said yoke having resilient arms which are apertured, pins movable through said apertures, clamping members fixed to said pins, adjusting screws mounted in the threaded sockets in said members, and levers pivotally mounted one upon each of said arms and having each an end adapted to contact with one of said 15 screws, as set forth.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

WILFRID GOUNOD GILLIAM. WVitnesses:

M. J. KIRWAN, M. E. HEYWOOD. 

